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安康市滑坡崩塌频繁发生,对当地造成了不可估量的损失。以安康市地震小区划为依托,对当地滑坡地质灾害的易发性进行研究。在研究区进行野外踏勘和搜集资料的基础上,借助magis和arcgis平台强大的绘图、分析功能,运用层次分析法对滑坡灾害因子进行加权叠加计算,绘制滑坡灾害危险性区划图。区划结果分为四个等级:无危险区、低危险区、中危险区、高危险区。无危险区、低危险区滑坡灾害易发性较低,为适宜城市规划和项目实施工作地带,中危险区、高危险区则要加以治理以减少滑坡地质灾害对居民生命和财产的威胁。
Ankang landslides frequently occur, causing immeasurable local losses. Based on the small earthquake area in Ankang City, the vulnerability of local landslide geological disasters is studied. On the basis of field survey and data collection in the study area, with the help of powerful mapping and analysis functions of magis and arcgis platforms, the landslide hazard factors are weighted and superposed calculated by AHP to draw the zoning maps of landslide disaster risk. Divisions results are divided into four levels: no danger zone, low-risk zone, medium-risk zone, high-risk zone. No danger zone, low risk landslide disaster prone to low, suitable for urban planning and project implementation work area, medium risk zone, high risk zone will be to be treated to reduce landslide geological disasters on the lives of residents and property threats.